All Forums  GQ Electronics Forums  2.GQ Geiger Muller Counter  GMC-500+ High Readings for Technetium-99m

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by dcarrion87[/i] [br]Hi everyone. Thank you in advance for your patience. We are new to these detectors. We've recently purchased GMC-500+ to compare it to couple of our existing detectors. On CS-137 the readings were very similar: [img]uploaded/dcarrion87/20250303101341Cs137.png[/img] However, on Technetium-99m, it was much higher to the others. Particularly compared to the Ludlum which is our most accurate: [img]uploaded/dcarrion87/20250303101354Tc99m.png[/img] Do you think this is just to do with the different energy levels of tc99m vs cs137 and no compensation for it? Thanks in advance. [/quote]    Insert an Image File Check here to include your profile signature.